The general inference and demonstration of the equilibrium problem of particle system are carried on, the full and necessary conditions are given while the constraint is ideal, linear and scleronomic.
本文就质点系平衡问题进行了一般性的推证，给出了当约束是理想、线性定常约束时的质点系平衡的充要条件。
2
It is always in the same way in proving the inference of the rule that determinant spread in row or column in the current "Linear Algebra" teaching material.
在现行《线性代数》教材中，关于行列式按行(列)展开法则推论的证明，基本上采用同一种方法。
3
The paper pays a big attention to the combined mechanism and algorithms of TB using inference machine and optimization using linear programmes.